A1 14 DTR.APC.APR.ALW.03
(ENG)
Appendix MID
5.4. Cable entries (glands).
Transmitters in the MID version are equipped with cable entries which meet the ATEX requirements (see
Annex Exi) and the requirements of EN 12405-1. In order to facilitate the adaptation of transmitter installation
parameters for user-specific installation requirements, in agreement with the user, transmitters can be supplied
without glands and plugs. then user must verify and approve applied own cable inlets and plugs which will use
for compliance with the requirements of ATEX, IP and EN 12405-1+A2:2010.
6. APC-2000ALW for MID application.
Measurement ranges and metrological
parameters
.
6.1. APC-2000ALW for MID application. Measurement ranges. Overpressure.
Range Absolute/gauge
7 bar
*) according to EN 12405-1+A2:2010 pressure units: bar and MPa can be used interchangeably
Measuring range of transmitters is setting by the manufacturer. Blocking against changes in the transmitter
settings can be made as follows:
- systemically, by HART System, activated by a configuration program (Report 2) and protected by password;
- " spec MID locking " done with local buttons on the transmitter with a local menu (command MID_WP).
For pressure transmitters complying to MID Parts Certificate, a manufacturer's standard "spec locking"
is activated, but in agreement with the customer transmitters are not blocked and then the locking
should be on by manufacturer of conversion devices.
Local buttons are protected by a screw side cover, which is sealed. When "spec MID locking" is done can
change only certain parameters of the transmitters, ie: HART transmitter address and the time constant, and
can be made additional entries identifying the transmitter associated with its place of installation. The
proceedings relating to the sealing set out in p. 8.
The pressure transmitter, as a part of the gas conversion of type 2, in accordance with the
requirements of the MID Directive must be protected against unauthorized manipulation by its
producer or manufacturer of the gas volume converter. Sealing of the transmitters is done by its
manufacturer or, by agreement with the customer, they may not be sealed, then sealing should be
made by manufacturer of gas volume conversion.
6.2. Measurement error (according to EN12405-1) in relation to the measured value:
- at the rated temperature range (-25 ÷ 55
0
C) 0.5%
-at reference conditions 0.2%
6.3. Long term stability / 5 years 0.5%
The manufacturer recommends a vertical mount transmitters APC-2000ALW during the pressure
measurements in MID applications.
7. APC-2000ALW in MID application. Electronic display.
Electronic indicating device (display), built-in the APC-2000ALW transmitters, are not controlled metrologically
and as such can not be used for clearing in accordance with EN12405-1 + A2: 2010
To Next Page
Loading...
